What is Centralized Traffic Control (CTC) primarily used for?

Centralized Traffic Control (CTC) is primarily used for governing movements by interlocking signals and cab signals. CTC involves a centralized system for managing train movements across a railway network, allowing for the safe and efficient coordination of trains over different routes.

Interlocking signals ensure that trains only proceed when it is safe to do so, preventing accidents by managing the flow based on the positions of the trains and the intended track routes. Cab signals provide real-time information to train operators, which aids in the immediate control of train speed and ensures compliance with signal indications. This integration of signals and real-time data allows for improved safety and operational efficiency across the rail system.

Other options do not encapsulate the primary function of CTC. While manual operations, monitoring passenger services, and emergency procedures are important aspects of railway operations, they do not convey the core purpose of CTC, which is centered around traffic regulation and train movement control through signaling systems.